This paper presents a virtual simulator that supports the design of a lane for cyclist and pedestrian (LPB). For the background of increasing the number of accidental contact on LPB, the authors assumed that LPB have never been designed from the view point of pedestrians. Hence, this study suggests a design support system that optimizes the environment factors so that the psychological stress is reduces and traffic conditions become smooth. This paper developed the virtual simulator that realizes flow of pedestrians as basic study. In this paper, firstly constructs of virtual environment of LPB and constructs of pedestrian model are described. Finally, the simulation results of the flow of pedestrian models are discussed.